On 3/9/2012 5:05 AM, Robert Gstoehl wrote: > Hey there, > > Our DRBD primary machine expirenced a rather spontanous reboot some time ago. > > We were happily starting / stopping kvm virtual machines, syncing a > new drbd resource and > then this happened:
[snipped logs] > node2 drbd primary > HP Proliant Micro Server > node3 drbd secondary > HP Proliant Micro Server /me tries not to laugh > Samsung Spinpoint drives /me tries harder not to laugh You've taken two cheap college student dorm room 'servers', clustered them, and sold the solution to a commercial client... > Any help is appreciated to get this sorted out. I have advice to offer, but you probably won't consider it helpful. And you'll likely find it offensive/insulting, as it is my intention to publicly shame/humiliate you in to a proper way of thinking: Don't sell your commercial clients $300 USD consumer desktops masquerading as 'servers', and the cheapest consumer drives on the planet for commercial use. I still have trouble digesting the fact you did such a thing. There could have been many reasons for you doing so, and no of them reflect positively on you, your company, or the way you conduct business. The only way to "fix" this, technically, is to drop a real SAS/SATA HBA and 4 enterprise class SATA drives into each existing box. This will cost ~$2400 USD w/8x1TB drives. The other option is to throw all the junk hardware out and replace it with a single commercial quality box with a quad core CPU, 8GB RAM, enterprise HBA or RAID card, and 4 enterprise SATA or SAS drives. The cost is roughly the same as the "upgrade solution above" using HBA+SATA, a couple hundred more for RAID, and another couple hundred for 600GB 10k SAS drives. You'll have 1.8TB total RAID5 or 1.2TB less than the current system, but random disk IOPS will be doubled vs SATA, which is desirable for VM workloads. -- Stan -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
